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(No Model.)

E. E. LEWIS.

HEEL PLATE. No. 871,510. Patented Oct. 11, 1887.

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NA PETERS, PholoL-dhogrnphnr, Washlngon. D. C.

UNITED STATES PATENT EETCE.

RUSSELL H. LEVIS, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR rIO FRED- ERIC/K RICHARDSON, OF SAME PLACE.

HEEL-PLATE.

SPECIFICATION forming part of Letters Patent No. 371,510, dated October 11, 188?.

Application filed July 19, 1887. Serial No. 244,694.

To all whom, z' may concern.-

Be it known that I, RUSSELL H. LEWIS, of Providence, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in fearing- Plates for Rubber Shoes, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

This invention relates to a plate adapted to be secured to a rubber heel for the purpose of taking up the wear at certain points thereof.

rlhe objects of my invention are to provide a heel-plate that may be readily attached to the heel by hand and without the use of a set.

ting-machine; and,further,the invention seeks to provide attaching-prongs of such construction that they will be readily clinched in the right direction, and that they will rnot permanently displace the material of the heel and allow leakage, as is the case with some old forms of heel-plates when the prongs are bent into their final clinching positions.

To theaforesaid purposes my invention consists in a plate provided with attaching-prongs which are bent in arcs and formed with a curvilinear crosssection,as,for example, an elliptical crosssection; and, further, in a short securing spike secured to the plate, all as hereinafter fully described and claimed.

In the accompanying drawings, illustrating my invention, Figure l is an under side view of a rubber heel with my improved heelvplate attached thereto. Fig. 2 is an enlarged sectional view of the heel and plate,taken on line 2 2 in Fig. 1. Fig. 3 is a similar View to that shown in Fig. 2, and shows another form of my plate having the short securing-spike mounted thereon. Fig. 4 is a side view of my improved plate detached, and Fig. 5 is a sectional view of the same, taken on line 5 5 in Fig. 4.

In t-he said drawings like numbers of ret`erence designate corresponding parts throughout.

Referring to the drawings, the number 7 designates an ordinary rubber heel to which my improved heel-plate is attached. The plate 8.

is fiat and is provided upon one face with the curved attaching-prongs 9, which, as clearly shown in Fig. 4, are formed in arcs, the cords (No model.)

a a of which are perpendicular to the plane of the plate, so that the end of the prong on the concave side thereof is directly in alignment with the base of the prong on the same side. By virtue of having the prongs thus curved they do not lacerate the material of the heel, when after being sunk into the heel to the required distance theyare bentover and clinched, as shown in Figs. 2 and 3, and the plate is therefore less liable to become loosened than if the prongs were straight when driven in the rubber heel.

In order to prevent the prongs9 from breaking when clinched,l form them of an elliptical or curvilinear cross-section, so that they are not so likely to crack and break when clinched, as is the case with the prongs of asquare crosssection.

The plate is rendered additionally secure when attached to the heel by means of the short securing-spike 10, which is shown in Fig. 3.

It will be observed that the prongs 9 are bent in reverse ways and similarly, so that in their normal conditions, as shown in Fig. 4, the bases and tops of the prongs are farther apart than any intermediate points of the prongs. By virtue of having the prongs 9 bent reversely and arranged in pairs the rubber of the heel, which is stretched and displaced as the prongs enter the same,is allowed to return toits original position when the plate is set and the prongs are clinched, `so that the prongs are closely hugged by the rubber and all leakage prevented.

The plates may be easily and quickly se cured to the heel by an unskilled workman and withoutthe use of a fastening-machine,which necessarily has to be used with some other forms of plates.

By virtue of having the prongs bent in the arcs, as described, the prongs do not displace the material about the base of the prongs when they are clinched, and so they do not leave a hole for leakage, as is the case with a straight prong after the same has been clinched. The reason of this is obvious, since my peculiarlycurved prong does not bend much below the upper half when being clinched, so that it is impossible for the clinching of the prong to cause the same to bend near the base thereof sufficiently to cause the objectionabledisplace ment of the rubber.

Having thus described my invention,Iclaim as new and desire to secure by Letters Patent 1. The combination,as hereinbefore set forth,

with the plate 8, of the curved prongs 9, having a curvilinear cross-section, substantially as and for the purpose herein described. 2. Thecombination,ashereinbeforesetforth, with the plate 8,provided with a. set of curved prongs, 9, of the short spike 10,attached to the plate, substantially as described.

3. The combination, with the plate 8, of the curved prongs 9, arranged so that the free ends the purpose herein described. In witness whereof I have hereunto set my.

hand.

RUSSELL H. LEWIS.

Vitnesses:

J OsEPH A. MILLER, Jr., M. F. BLIGI-In 

